916439766 has 16 divisors (see below), whose sum is σ = 1999505088. Its totient is φ = 277709000.

The previous prime is 916439753. The next prime is 916439773. The reversal of 916439766 is 667934619.

It is a super-2 number, since 2×916439766² = 1679723689412269512, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6942660 + ... + 6942791.

It is an arithmetic number, because the mean of its divisors is an integer number (124969068).

Almost surely, 2^916439766 is an apocalyptic number.

916439766 is an abundant number, since it is smaller than the sum of its proper divisors (1083065322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

916439766 is a wasteful number, since it uses less digits than its factorization.

916439766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13885467.

The product of its digits is 1469664, while the sum is 51.

The square root of 916439766 is about 30272.7561678814. The cubic root of 916439766 is about 971.3326233069.

The spelling of 916439766 in words is "nine hundred sixteen million, four hundred thirty-nine thousand, seven hundred sixty-six".